Deflecting means



June 2, 192 1,540,141

C. W. OLSON DEFLECTING MEANS Filed Feb. 19, 1923 F/ea a 2/ 37 INVENTOI? C/YAL M UL-SON B OL wM H7- TORNEYG' Patented June 2, 1925.

. UNITED STATES PATENT OFFICE.

CARL W. OLSON, OF MINNEAPOLIS, MINNESOTA.

DEFLECTING MEANS.

Application filed February 19, 1923. Serial No. 620,088.

This deflecting means is particularlyadapted to prevent impairment of vision through windows of motor or engine driven vehicles, locomotives, trolley-cars, or automobiles.

It is well-known that the elements such as rain, snow, sleet, mist or wind driven dust impair vision through windows and windshields at the time when a clear view for the engineer, motorman, or driver, is essential. It is old to employ devices which wipe the surface of the window. However, these devices are adapted to attempt to remove snow, etc., after it is impinged upon the window. This novel device functions to deflect the elements before contacting with the auxiliary mechanism having arms or blades which rapidly travel in front of the win-- dow and supplement the effects of the air blast or current. I

The object therefore of this invention is to provide an improved deflecting means.

Other objects of the invention will more fully appear from the following description and the accompanying drawings, and will be pointed outin the annexed claims.

In the accompanying drawings, there has been disclosed a structure designed to carry out the objects of the invention, but it is to be understood that the invention is not confined to the exact features shown, as various changes may be made within the scope of, the claims which follow.

In the drawings: I

Figure 1 is a perspective view in front elevation of a portion of a common type of trolley-car showing the position of the novel device;

Figure 2 is a vertical. median section through the device and showing in dotted lines the relative position of the auxiliary mechanism; and

Figure 3 is a horizontal cross-sectional view on the line 3-3 of Figure 2.

For purposes of explanation of this invention, the selected embodiment of the deflecting means is shownin connection with the window of a trolley-car although it is to be understood that the term window may be used to include wind-shields of automobiles, omnibuses or the similar visual portlons of other dI'lVGIl vehicles.

This novel device includes a blower housing which may be conveniently provided by two metallic castings forming the front 11 and the back 12. These two parts are shaped to have "complementary integral cars by means of which the two castings can be secured together by the screws 13. The back .is also formed with the apertured lugs 14 to receive the headed bolts by which the housing may be secured as, for example, to

the frame 15 of a caradjacent the windshield or front window 16.

The blower is operatively mounted within consists of a disk 17 having a plurality of the housing and the form of blower shown inwardly extending marginal vanes 18 which are arcuatelycurved to facilitate their blowin function. The disk 17 has an integral hub 19 which'is pinned, as shown in Figure 3, to a stud shaft 21 having bearings 22 provided by the front 11 and back 12. This stud shaft 21 projects rearwardly through the back 12 and is pinned to a coupling 23 which also has the driving shaft 24 pinned thereto. The means for actuating the driving shaft 24 is here shown as an electric motor 25 of any of the common types which may be suitably supported upon a bracket 26 in the interior of the car. This motor may be supplied with current from The air intake for the blower housing is provided by means of one or more apertures 27 in the casting forming the back 12. The draft or blast of air generated by the driven blower is adapted to be directed adjacent the window to prevent contact or accumulation of the elements thereon. For the pur-' poses of this specification, the term elements is employed to include, fog, rain, sleet, snow, icy particles, dust, etc. The air currents from the blower are directed substantially parallel to the window surface 'althouglrpart When desirable or necessary, an auxiliary,

deflecting mechanism is provided in the form of vanes or arms adapted rapidly to travel substantially in a vertical plane in front of the window. Such auxiliary mechanism is here shown as a plurality of arms or vanes 29 having a central hub 31 adapted to be pinned to the forward end portion of a secondary shaft 32 having bearings 33 in ,the front 11 and back 12 respectively. Preferably, this auxiliary mechanism is connected for simultaneous actuation with the blower. This is conveniently effected by a belt 34 transmitting the motion of a pulley 35 pinned to the stud shaft 21 to a pulley 36 pinned to the secondary shaft 32. The front 11 has a recessed portion 37 to accommodate the belt and pulley connection. The vanes 29 are substantially fiat and are slightly turned as is suggested in the several views in order to deflect outwardly the elements or the element-borne particles.

Having thus described my invention, what I claim as new and desire to secure by Let- I ters-Patent, is:

1. In a device of the'class described, the combination of a blower, a housing therefor, a conduit adapted to direct a current of air from the blower housing adjacent a window to deflect the elements therefrom, a rotatable arm mounted on the housing to travel in a path adjacent said window to deflect the element therefrom and means simultaneously to actuate the blower and arm.

2. In a device of the class described, the combination of a blower, a housing therefor, a shaft for the blower rotatably borne adjacent a window, a conduit adapted to direct a current of air from the blower housing adjacent the window to deflect the elements therefrom, ashaft rotatably borne by said housing, an arm mounted on the housing shaft to travel in a path adjacent the window to deflect the elements therefrom, transmission means connecting the two shafts for simultaneous rotation, and means to actuate the blower shaft.

3. In a device of the class described, the combination of a blower, a housing therefor adapted to be supported adjacent a window,

means to actuate the blower, and a conduit adapted to direct the current of air from the blower housingadjacent the window to deflect the elements therefrom, the housing being apertured on its side adjacent a window to provide air intake to permit passage of air to the blower.

4. In a device of the class described, the combination of a rotary blower, a substantially circular housing therefor adapted to be mounted adjacent a window, the housing having a substantially tangential opening to direct air currents adjacent the window, and

means to rotate the blower.

5. In a device of the class described, the combination of a rotary blower, a substantially circular housing therefor adapted to be mounted adjacent a window, the housing having an opening to direct air currents adjacent the window, a rotary prime mover mounted adjacent the housing in axial alinement with the blower and a driving con-' nection between the prime mover and blower.

6. In a device of theclass described, the combination-of a rotary blower, a housing therefor adapted to be mounted/adjacent the window, the housing having an opening to direct air currents adjacent the window surface, means to rotate the blower, and a rotatable arm mounted adjacent the housing and operably projecting at one side of said housing and over the surface of the window adjacentwhich said air currents are directed by theblower.

In witness whereof I hand this 17th day of February 1923.

CARL w. OLSON.

have hereunto set my 

